A doctor orders 250 mg of Rocephin to be taken by a 19.8 Ib infant every 8 hours. The medication label shows that 75-150 mg/kg p
1 answer:
Answer: Yes, doctor's order is within the desired range.
Step-by-step explanation:
We need to first convert 19.8 lb to kg.
We know that 1 kg=2.20 lb
Therefore, the weight of infant=
Minimum Desired Dosage)
Maximum Desired Dosage
Since there are 24 hours in one day and the medication is ordered every 8 hours.
3 times per day doctor ordered medication
.
Total amount of Rocephin in a day750 mg ordered per day
And 750 mg is within the desired range of 675-1,350 mg
So, yes doctor has ordered a dosage within the desired range.
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Answer:
The correct option is
Step-by-step explanation:
The parameters given are;
The length of the string = 10 inches
The speed or rate of travel of the wave = c inches per millisecond
The position on the string from the left-most end = x
The time duration of motion of the vibration to reach x= 0.3 milliseconds
The distance covered = Speed × Time = c×0.3
Given that the string is plucked at the middle, with the vibration travelling in both directions, the point after 0.3 millisecond is x where we have;
The location on the string where it is plucked = center of the string = 10/2 = 5 inches
Distance from point of the string being plucked (the center of the string) to the left-most end = 5 inches
Therefore, on the left side of the center of the string we have;
The distance from the location of the vibration x (measured from the left most end) to the center of the string = 5 - x = -(x -5)
On the right side of the center, the distance from x is -(5 - x) = x - 5
Therefore, the the equation that can be used to find the location of the vibration after 0.3 milliseconds is or
which gives the correct option as A